# 需求 使用handler来访问百度 获取网页源码

import urllib.request

url='http://www.baidu.com'

headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36'
}

request = urllib.request.Request(url=url,headers=headers)

#  handler bulid_opener open

# (1) 获取handler对象
handler = urllib.request.HTTPHandler()

# (2) 获取opener对象
opener = urllib.request.build_opener(handler)

# (3) 调用opener方法

response = opener.open(request)

content = response.read().decode('utf-8')
print(content)





